diff --git a/docs/getting_started/porting-guide.rst b/docs/getting_started/porting-guide.rst
index 5786dd384..af36b6a5f 100644
--- a/docs/getting_started/porting-guide.rst
+++ b/docs/getting_started/porting-guide.rst
@@ -2202,6 +2202,19 @@ immediately before the CPU was turned on. It indicates which power domains
 above the CPU might require initialization due to having previously been in
 low power states. The generic code expects the handler to succeed.
 
+plat_psci_ops.pwr_domain_on_finish_late() [optional]
+...........................................................
+
+This optional function is called by the PSCI implementation after the calling
+CPU is fully powered on with respective data caches enabled. The calling CPU and
+the associated cluster are guaranteed to be participating in coherency. This
+function gives the flexibility to perform any platform-specific actions safely,
+such as initialization or modification of shared data structures, without the
+overhead of explicit cache maintainace operations.
+
+The ``target_state`` has a similar meaning as described in the ``pwr_domain_on_finish()``
+operation. The generic code expects the handler to succeed.
+
 plat_psci_ops.pwr_domain_suspend_finish()
 .........................................
 
diff --git a/include/lib/psci/psci.h b/include/lib/psci/psci.h
index 04e5e3d72..7f7b7e3ff 100644
--- a/include/lib/psci/psci.h
+++ b/include/lib/psci/psci.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -301,6 +301,8 @@ typedef struct plat_psci_ops {
 				const psci_power_state_t *target_state);
 	void (*pwr_domain_suspend)(const psci_power_state_t *target_state);
 	void (*pwr_domain_on_finish)(const psci_power_state_t *target_state);
+	void (*pwr_domain_on_finish_late)(
+				const psci_power_state_t *target_state);
 	void (*pwr_domain_suspend_finish)(
 				const psci_power_state_t *target_state);
 	void __dead2 (*pwr_domain_pwr_down_wfi)(
diff --git a/lib/psci/psci_on.c b/lib/psci/psci_on.c
index aa6b324ed..470b4f33e 100644
--- a/lib/psci/psci_on.c
+++ b/lib/psci/psci_on.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -181,6 +181,14 @@ void psci_cpu_on_finish(int cpu_idx, const psci_power_state_t *state_info)
 	psci_do_pwrup_cache_maintenance();
 #endif
 
+	/*
+	 * Plat. management: Perform any platform specific actions which
+	 * can only be done with the cpu and the cluster guaranteed to
+	 * be coherent.
+	 */
+	if (psci_plat_pm_ops->pwr_domain_on_finish_late != NULL)
+		psci_plat_pm_ops->pwr_domain_on_finish_late(state_info);
+
 	/*
 	 * All the platform specific actions for turning this cpu
 	 * on have completed. Perform enough arch.initialization